JPS5917769Y2 - Tray-shaped paper assembly container - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a tray-shaped container used for selling meat, fish, wild vegetables, and other appropriately processed foods as so-called packaged products, for example, in supermarkets and the like. The conventional container of this kind was made of styrofoam, but it is characterized by being constructed so that it can be easily formed by assembling sheet-like paper materials.

Conventionally, the above-mentioned containers have generally been made of synthetic resin such as expanded polystyrene.

However, in recent years, it has become extremely difficult to obtain petroleum energy resources, making it increasingly difficult to produce polystyrene foam using petrochemicals, and the manufacturing cost thereof has gradually increased.

Furthermore, this type of container is destined to be discarded as soon as the internal contents are taken out after the customer purchases the product.Therefore, it is not only a waste of precious energy resources, but also releases toxic gas when incinerated as garbage. Because of this, it is inevitable that it will cause pollution, and many problems have arisen in its disposal.

The present invention is configured to allow the extremely easy formation of a tray-shaped container based on a simple assembly operation of a single sheet-shaped paper material. This invention relates to a tray-shaped paper assembly container that is characterized by solving the conventional problems such as the above, and at the same time, the container is robust and has a smart appearance in the assembled state. be.

Hereinafter, the configuration of the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a plan view of the present invention formed from a sheet of paper material in the unfolded state, in which dotted lines are mountain fold lines, thin lines are valley fold lines, and dashed lines are shown. indicates an unfolded boundary line.

In FIG. 1, reference numeral 1 denotes a bottom plate, and 2 and 2' are end panels continuous to each other without providing any creases on the end side of the bottom plate 1, each having a restraining folded piece 3. 3' are connected to each other via mountain fold lines a and a'.

Reference numeral 4゜4' denotes a side panel continuous to the side of the bottom plate 1 without any creases, and triangular folding parts 5, 5 are provided at both ends of the side panel to be folded into the outside of the end panels 2, 2'. The triangular folded portions 5, 5.5' and 5' are connected to the end panels 2 and 2' with mountain fold lines, b and b'. , b' are provided.

C, C, C', C' are the triangular folded parts 5, 5.5',
This is the valley fold line for folding 5' into a triangular shape.

Regarding the folding angles of the triangular folding parts 5, 5.5', and 5', it is recommended that the angle α shown in Fig. 2 be approximately 30° from the viewpoint of strength and smart appearance. desirable.

2a, 2a' and 3a, 3a' are end panels 2,
2' and the restraining folded pieces 3, 3', the joint parts 2a, 2a' and 3a, 3
a' is the restraining folding piece 3, 3' attached to the end panel 2, 2'
This is to join the two when their outer surfaces are polymerized and matched.

That is, when assembling the present invention, by joining the end panels 2, 2' and the restraining folded pieces 3, 3', triangular folded portions 5, 5.
', 5' are placed so that they are clamped and fixed, therefore,
The joints 2a, 2a' and 3a, 3a' are joined immediately before the assembly of the present invention is completed.

Note that the bonding means for the joints usually depends on adhesives, but for example, the paper used in the present invention may be coated with a synthetic resin on its surface to impart preventive properties. If a layer is applied, a thermocompression bonding means such as a welder may be used.

Regarding the paper material used in the present invention, any material can be used as long as it has a wall thickness of approximately 2 mm or more and has a relatively high restoring force.

Further, if necessary, the surface thereof may be appropriately subjected to preventive treatment, and printing of required colors or patterns may be applied to the surface to add design.

The present invention has the above structure, and the assembly procedure of the present invention is as follows.

First, in the state shown in Fig. 1, the end panel 2.2
' and side panels 4, 4' are made to stand upward by being warped without forming creases.

Next, by folding the triangular folded parts 5, 5.5', 5' along the valley fold lines C, C, C'C' and the mountain fold lines b, b', b', By folding it in two and positioning it on the back of the end panel 2, 2', and folding the restraining folded pieces 3, 3' so as to overlap and match the outer surfaces of the end panels 2, 2', the above-mentioned two The folded triangular folded portions 5, 5.5', and 5' are held together.

After that, the end panel 2.2' and the restraining folded pieces 3, 3', which are in a superposed state, are connected to the joint portion 2a.

2a' and 3a, 3a', the triangular folded parts 5, 5.5', 5' are kept in a secure sandwiched state, and the present invention is shown in FIGS. 3 and 4. The assembled state will be stabilized as follows.

The assembly procedure described above can also be performed automatically by a dedicated machine.

In the present invention assembled using the above-described procedure, the end panels 2, 2' and the side panels 4, 4' are stood up by being warped without forming any creases.
These are given a repulsive force that always opens outward, and therefore the end panels 2, 2' and the lower side panel 4
. As shown in FIG. 4, the arcuate edge opens slightly outward, resulting in a good and sleek appearance.

Furthermore, the connection portion between the end panels 2, 2' and the side panels 4, 4' is the triangular folded portion 5.5.
The clamping state of 5' and 5' is such that the end panels 2, 2' and the restraining folding pieces 3, 3' are in a good overlapping state based on the joints of the joint parts 2a, 2a' and 3a, 3a'. Not only is it extremely reliable, but also the end panel 2
．． 2' and the side panels 4, 4' due to the above-mentioned warping acts as a force that pushes the connecting portion outward rather than in the pulling direction. The clamping force for 5.5' and 5' is further strengthened, so that the stability of the present invention in the assembled state is extremely excellent.

According to the invention described in detail above, unlike conventional containers of this type made of synthetic resin such as styrofoam, the invention is made of paper, so the manufacturing cost of the invention is significantly lower than that of conventional products. Not only can it be used for a long time, but also no toxic gas is generated when it is incinerated after disposal, so there is no harm that could cause pollution.

Furthermore, the present invention has remarkable robustness in the assembled state based on the above-mentioned action, and also has smartness in that the upper edge of the container has an arcuate shape. Not only is it ideal as a tray-shaped container for so-called packaged products sold at supermarkets, etc., but the present invention does not have any assembly grooves on the bottom, so it can be used to store, for example, meat, etc. There is no possibility of a situation where blood oozes out from the bottom if the container is left in the container.

As described above, the present invention has a simple structure and exhibits outstanding effects, so its utility value is extremely high.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a plan view of the invention in the unfolded state, Fig. 2 is a plan view showing one corner of the same invention, and Fig. 3 is an assembled version of the invention. FIG. 4 is a perspective view of the present invention in a state, and FIG. 4 is a plan view of the same.

Claims (1)

[Scope of utility model registration request] A bottom plate 1, end panels 2, 2' connected to the end side of the bottom plate 1 without creating a crease, and the end panels 2,
2', and side panels 4, 4' that are connected to the sides of the bottom plate 1 without creating folds. and the side panels 4, 4' are connected to each other without any creases at both ends, and there are mountain fold lines on the sides of the end panels 2, 2', b, b',
Triangular folded parts 5゜5.5', 5' connected via b'
are formed from a sheet of paper material, the end panels 2, 2' and the side panels 4, 4' are bent upward without forming any creases, and the triangular The shaped folding parts 5, 5.5', 5' are folded in half at the center, and then bent without creating a crease and folded into the outer surface side of the end panel 2, 2', and then the above-mentioned restraining folded piece 3 and 3' are folded back so as to overlap and match with the outer surface side of the end panel 2° 2', and the triangular folded portions 5° 5.5' and 5', which have been folded in half, are held and folded back. A tray-shaped paper assembly container, characterized in that the pieces 3, 3' are glued to the end panel 2, 2' in their mutual central parts.